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Primitive Perfect Isosceles Right Triangled Square

Title: __ 18:40AM GHM

Order: 18

Horizontal side: 40 Vertical side: 40

Elements: 1√2, 2, 2√2, 3, 5, 6, 5√2, 8, 6√2, 7√2, 10, 12, 10√2, 15, 12√2, 15√2, 25, 20√2.

Code: 255 0 15 204 20 20 126 28 28 83 28 20 125 28 16 51 25 20 37 25 20 26 26 18 10 26 18 27 25 17 70 27 17 64 34 10 63 40 10 157 0 15 150 15 15 54 20 10 104 30 0 103 40 0

The properties below may precede order:side in a tiling's title:

Credit for Discovery

Just three people are credited with the discovery of Primitive Perfects:

Geoffrey H. Morley (GHM, England)

Jasper D. Skinner, II (JDS, United States)

William T. Tutte (WTT, Canada, 1917-2002) (15:44AI, 17:136AJ and 19:56AJ only)

25
20√2
12√2
8
12
5
3
2√2
1√2
2
7√2
6√2
6
15
15√2
5√2
10√2
10